<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>添加学生</title>
    <style>
        body{
            background: lightskyblue;
        }
    </style>
</head>
<body>
    <form method="post" action="/addUserServlet" style="width: 150px;margin: 0 auto">
        姓名：<input name="username" type="text" placeholder="请输入姓名" required>
        年龄：<input name="age" type="number" placeholder="请输入年龄" required>
        成绩：<input name="score" type="number" placeholder="请输入成绩" required>
        <button type="submit">提交</button>
    </form>
</body>
</html>